Reinforcing spacer



FIG. 1 is a perspective front view of a reinforcing spacer;

FIG. 2 is a side view of the reinforcing spacer;

FIG. 3 is a top view of the reinforcing spacer; and,

FIG. 4 is a bottom view of the reinforcing spacer. 

CLAIM The ornamental design for a reinforcing spacer, as shown and described. 